p3: national and global energy recourses Flashcards
what is a non-renewable energy source
will eventually run out
it is not replaced at the same rate it is being used
what is a renewable energy source
will not run out
can be replaced at the same rate which it is used
what are the main renewable resources on earth
solar
tidal
wave
wind
geothermal
biofuel
hydroelectric
what are the main non-renewable recourses available on earth
coal
oil
gas
nuclear
what are the main advantages of using coal as an energy resource
enough available to meet current demand
reliable
cheap to extract and use
what are the main disadvantages of using coal as an energy resource
will eventually run out
releases CO2 which contributes to climate change
what are the main advantages of using nuclear fuel as an energy resource
lots of energy released from using a small
reliable
enough available to meet current demands
what are the main disadvantages of using nuclear fuel as an energy resource
waste is dangerous and expensive to deal with
expensive to run
what are the main advantages of using solar energy
no polluting gases
no waste products
very low running cost
what are the main disadvantages of using solar energy
unreliable
cant be used on a large scale
what are the main advantages of using tidal power
no polluting gases
no waste products
reliable
produces large amounts of electricity
what are the main disadvantages of using tidal power
can harm marine habitats
hazards for boats
initial set up is expensive
what are the main advantages of using wave turbines
no polluting gases produced
no waste products
low running cost
what are the main disadvantages of wave turbines
unreliable
dependent on weather
cant control supply
what are the main disadvantages of using wind turbines
unreliable
dependent of weather
cant control supply
what are the advantages of using geothermal energy
no polluting gases
low running cost
what are the main disadvantages of using geothermal energy
initial set up is expensive
available in a few locations
what are the main advantages of using biofuels
can be carbon neutral
reliable
what are the main disadvantages of using biofuels
expensive to produce
use land/water that might be needed to grow food
what are the main advantages of using hydroelectric power
no polluting gases
no waste products
low running costs
no fuel cost
what are the main disadvantages of using hydroelectric power
initial set up is expensive
dams can harm marine habitats
